Prove that (sin⁡A  - cos⁡A  + 1)/(sin⁡A  + cos⁡A  - 1)=1/(sec⁡A  - tan⁡A )




This question is exactly same as Example 15 of Chapter 8 Class 10 Trigonometry in the NCERT Book.

Please check the answer and video here


  1. Class 10
  2. Solutions of Sample Papers for Class 10 Boards

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Davneet Singh
Davneet Singh is a graduate from Indian Institute of Technology, Kanpur. He has been teaching from the past 10 years. He provides courses for Maths and Science at Teachoo.